The book is written with intention to cover almost all the chemistry related aspects of natural products, and the information of natural products has been provided through scheme of different chapters in simple language. The present book contains eight chapters and each chapter provides systematic information about each class of natural products. The first chapter provides the introductory information about natural products and natural product chemistry. The second chapter contains the concepts of stereochemistry in natural products. The third chapter of the book deals with glycosides which are very therapeutically potent natural products and provides details of important classes of glycosides along with individual examples.